Pipe cutting machine



Nov. 8, 1932. WAGNER 1,886,855

PIPE CUTTING MACHINE Filed May 25, 1930 4 Sheets-Sheet 1 11 0072 [7, Wagner Mm JW Nov. 8, 1932. N. E. WAGNER 1,886,855

PIPE CUTTING MACHINE Filed May 23. 1930 4 Sheets-Sheet 2 gnmntoz Naah E 71 097287 4 Sheets-Sheet 3 gnwnto'o Nov. 8, 1 932. N. E. WAGNER PIPE CUTTING MACHINE Filed May 23. 1930 Nov. 8, 1932. N. E. WAGNER PIPE CUTTING MACHINE Filed May' 25. 1950' 4 Sheets-Sheet 4 Nw wz 2 5 3 6 7% Z w I, 0..O "w 2 MM 65. \\%MM J r 69 w W 1 I fi Z926 Patented Nov. 8, 1932 PATENT. OFFICE NOAH E. WAGNER, F TULSA, OKLAHOMA PIPE CUTTING nmcnnm Application filed Kay 23, 1930. Serial No. 455,059.

My invention relates to pipe cutting machines constituting improvements on the t pe of apparatus in my application filed beptember 4. 1925, Serial No. 54,549.

The principal object of the present invention resides in the provision of a machine of the character described for cutting the pipe by means of acetylene cutting torches which are adapted to be rotated around the pipe, the torches being positioned and arranged so that the flames or jets issuing therefrom will intersectto provide beveled surfaces on the opposing portions of the out.

Another object of the invention resides in the provision of novel means for supporting the machine on the pipe to be cut and the provision of means whereby a single machine may be adapted for operation on pipes of different diameters.

A further object of the invention consists in the provision of novel means for supporting the cutting torches, the supporting means being such that the individual torches may be adjusted relative to the work and one torch may be adjusted relative to the other.

Still another object of the invention resides in the provision of means whereby the supporting structure of the machine may be 1 adjusted to secure the proper alignment relative to the pipe so that the parts may be successfully operated in the cutting operation.

With the above and other objects in view, which will appear as the description proceeds, my invention consists in the novel details of construction, and arrangement of parts, described in the following specification andillustrated in the accompanying drawings, and while I have illustrated and described the preferred embodiments of the 1nvention, as they now appear to me, it will be understood that such changes may be made as will fall within the scope of the appended claims.

In the drawings Fig. 1 is a side elevation.

Fig. 2 is a top plan with the torches removed.

Fig. 3 is a section on the line 33 of Fig. 2 looking in the direction of the arrows.

Fig. 4 is a longitudinal vertical section on the line 44 of Fig. 2 looking in the direction of the arrows.

Fig. 5 is an end view looking towards the right of Fig. 1.

Fig. 6 is a detail showing a section on the generally the supporting frame of my improved machine and C indicates generallythe support or carrying member for the acetylene torches. The frame consists of the angle iron end pieces 1 and 2 connected together by the longitudinally extending bars or strips 3, 4 and 5, as shown more particularly in Figs. 1 and 2 of the drawings. The angle iron end strips or pieces Land 2 are preferably semi-circular in shape to conform to the curvature of the pipe and the connecting strips 3 and 5 are provided respectively with the outwardly directed horizontal flanges 6 and 7, the flange 6 being provided in its outer edge with longitudinally spaced notches 8 while the flange 7 is provided with the longitudinally spaced perforations 9. The arcuate shaped angle iron end piece 2 has the bearings 10 secured to the outer face of the vertically extending portion thereof and each of these bearings is provided with a threaded opening to receive a screw 11 having a hand hold or grip 12. Secured to the inner face of the vertically extending portion of the angle iron arcuate shaped end piece 1 are the bearingsv 13 each having a threaded opening to receive an adjusting screw 14 having a hand grip or hold 15. Secured to the outer vertical face of the end piece 1, by means of the bolts 16 and nuts 17 is an inverted U-shaped yoke member indicated generally at D this yoke member consisting of the portions 18 and 19 normally secured together by means of the screws 20. The portion 18 is provided with the upwardly extending flange 21 which cooperates with the portion 19 to provide a groove 22 to receive and rotatably support the a the gear-wheel in perfect alignment. In orin Fig. 3 of the,

relatively large gear wheel 23. The yoke has the downwardly extending portions 24 extending to a point equal to the. diameter of the inside circle of the gear. These downwardly extending portions assist in carrying der that the gear wheel 23 may be readily removed, when desired, from the inverted U-shaped yoke member D, without disconnectin the parts 18 and 19 of the yoke, it is forms of two 'sections .25 and 26, as shown more particularly in Fig. 3 of the drawings. These sections are connected, for pivotal movement, by the plates 27, these lates being secured to the upper section 25 y the bolt 28 and to the lower section 26 by means of the bolts 29. The sections are adapted to be detachably connected together at their opposite sides by means of the threaded bolts 30 and win nuts 31, the bolts being pivotally connected to the angle iron plates 32 secure to the upper section 25 of the gear by means of the nuts and bolts 33. Angle iron plates 34 are secured to the lower section 26 of the gear by means of the nuts and bolts 35 and are provided with the notches 36 into which the ends of the bolts are adapted to be positioned, the wing nuts 31 engaging the horizontal portions of the' angle iron plates 34, as shown more particularly in Figs. 1 and 3 of the drawings.

The frame B is adapted to be connected to the pipe A b means of the chains 37 which are preferab y of flat link construction one end of each of the chains being secured to the horizontal flan e 7 of the frame by means of the bolts 38 an nuts 39, the bolts being positioned through the desired perforations 9 in the horizontal flange and the nuts 39 engaging onoppos'ite faces of the flane as shown more particularly in Fig. 3 o the drawings. Secured to the opposite ends of the chalns are the spring latch members 40 of well-known construction each of these latch members including a rod 41 adapted to enter a notch 8 formed in the horizontal flan e 6. The sleeve portions 42, of the spring latcgmembers, will engage the upper surface of the flange as shown-more particularly drawings, and when it is desired to disconnect the frame from the pipe the sleeve portions 42 will be raised so that the rods 41 may be swung from their respective notches and the chains lowered from engagement with the pipe. With the chains released from engagement with the pipe the frame may be raised and removed therefrom. Attention is directed to-the fact that the positions of the chains may be adjusted at will by connecting them in the desired opemngs 9 and notches 8 of the flanges 7 and 6 respectively.

Secured to the end strip 1 of the frame, by means of the screw 43, is the bracket 44 .55 forming a bearing for the horizontal portion 45 of a crank 46. Secured to the end of the horizontal portion 45 is a relativel small gear wheel 47 adapted to mesh wit the gear wheel 23 and when the crank 46 is operated the gear wheel 23 will be rotated by means of themeshing gear 44. As shown more particularly in Fig. 4 of the drawings the horizontal portion 45 of the crank has a sliding movement in the bracket 44 and by sliding the same to the ri' ht of the osition shown in Fig. 4 of the rawings t e gear wheel 47 may be removed from mesh with the gear wheel 23. A collar 48 is provided on the portion 45 for limiting the movement of the crank in meshing the gear 47 with the gear 23.

The sup orting member or arm C is secured to t e gear wheel 23 and is adapted to operate or rotate therewith. This armor member C is provided onone end with the reduced threaded extension 49 which passes through the gear wheel 23 and is secured in position by means of the nuts 50 and 51. Brace arms 52 are secured tothe arms G by means of the nut and bolt 53 and to the gear wheel 23 by means of the nuts and bolts 54, as shown more particularly in Figs. 1 and 2 of the drawings. The arm C is provided on each longitudinal edge with a dependin flange 55, as shown more particularl .in

ig. 7 of the drawings, and is provide adjacent its outer end,-with a relatively long elongated opening 56, as shown more partlcularly in Fig. 2 of the drawings.

-A plate 57 is positioned over the upper face of the arm C and is adapted for sliding movement relative thereto. This plate 57 carries the sleeve 58, arranged at the angle shown more articularly in Fig. 1 of the drawings, and t e lower end of the sleeve extends through the elongated opening 56, as shown. The upper end of the sleeve 58 is tapered and exteriorl threaded, as shown at 59, and provided with vertically extending slots 60, as shownmore particularly in Figs. 1 and 2 of the drawings. An acetylene torch 61, of wellknown construction, extends through the sleeve 58 and is carried thereby, the torch being vertically adjustable in the sleeve and held in its adjusted positions by means of the nut 62 engaging the threads 59 of the tapered end of the sleeve. For securing the plate 57 in its adjusted positions I provide a clamping plate 63 which is positioned beneath t e arm C and provided with longitudinally extending grooves 64 to receive the depending flanges55 of the arm, as shown more particularly in Fig. 7 of the drawings. The

plate 63 is connected to the plate 57 by means of the screws 65 and when the screws are adjusted to draw the plates 57 and 63 towards lower end of the sleeve 58.

torch longitudinall of the arm the screws 65 will be adjuste to loosen the plate 63, which in turn releases the plate 57 and allows the plates to be moved longitudinally relative to the ar'm, the relatively long elongated opening 56 allowing for relatively wide adjustment of the torch on the arm.

Also carried by the arm 0 is a sleeve 66 for carrying the acetylene torch 67 of usual construction. This sleeve 66 is arranged at an angle, as shown more particularly in Fig. 1 of the drawings and is directed towards the The sleeve 66 is of the same construction as the sleeve 58 and is provided with the exteriorly threaded tapered portion 67 provided with the slots 68, a nut 69 being received on said tapered threaded portion to secure the torch with n the sleeve. As shown more particularly in Fig. 1 of the drawings, the lower ends of the torches are directed towards one another and the flames or jets discharged therefrom are directed towards one another and will intersect to provide beveled surface on opposed ends of the cut pipe.

A threaded rod 70 depends from the arm C, adjacent the outer or free end thereof. the upper end of the rod passing through the arm and held in position by means of the nuts 71. The lower end of the rod 70 is forked, as shown at 72, and a roller 73 operates in this forked end. The roller is removably held in place by means of the bolt 74 and nut 75.

. Secured to the outer or free end of the arm C. by spot welding or the like. is the transversely extending member 76 and suspended from this member is a carriage or frame 77 of substantially U-shaped construction, this frame 'or carriage extending beneath and supporting the pipe, as shown more particularly in Figs. 1 and 5 of the drawings. The frame or carriage is formed with the lugs or projections 78 forming bearings for the bolts 79 which support the rollcrs 80. The bolts 79 are removably held in v the lugs or projections 78 by means of the nuts 81 and when it is desired to remove the rollers 80 for any purpose, such as substituting rollers of different diameters, the bolts 79 may be easily removed by first removing the nuts 81 therefrom. As shown more particularly in Fig. 1 the rollers 80 are of double formation and will engage the outer periphcry of the pipe. The frame or carriage 77 is suspended from the member 78 bymeans of the chains 82 and 83 the upper end of the chain being connected to the end of the member 76, by means of the bolt 83' and nut 84, while the upper end of the chain 83 is connected to the opposite end of the member 76, by means of the spring clip indicated generally at 85. This spring clip 85 includes a rod 86 with a sleeve 87 slidable thereon and the end 88 of the clip engages in an opening formed adjacent-the end of the member 76. When it is desired to release the carriage or frame 77 and its associated rollers, from the pipe, it is only necessary to release the clip 85 from engagement with the end of the member 76.

From the above detail description it is thought that the construction of m improved form of machine will be clear y understood. As has been stated, the acetylene torches are carried by the arm G which is connected to the gear 23 and when the gear 23 is rotated, through means of the gear 47 and crank 46, the arm will rotate around the pipe and the flames from the torches directed against the pipe to cut the same. The torches being arranged at an angle to provide the intersecting jets a beveled surface will be formed on the opposed ends of the cut pipe. This is of particular advantage in relaying or connecting the sections of the pipe by the oxy-acetylene or arc welding processes. As the arm is rotated it carries with it the roller 73 and the rollers 80, the latter being mounted in the carriage or frame 77 and these rollers engage the outer periphery of the pipe and position the outer end of the arm C relative thereto. The rod 70 carrying the roller 73 is adjustably connected to the arm C and by means of the threaded rod 83' and nut 84 the frame or carriage 77 may be adjusted. These adjustments just described adapt the rollers 73 and 80 to be adjusted to properly engage the pipe and have use with pipes of varying diameters. At the same time, when desired, the frame or carriage 77 may be entirely disconnected and a carriage or frame of different dimensions used in connection with pipes of varying diameters. In order to adapt the device for pipes of different diameters the rollers 73 and 80 may be detached from their respective carrying members and rollers of different diameters used. The frame B may be adapted to pipes of different diameters, or to secure perfect alignment, by the adjusting screws 11 and 14 as well as by adjusting the screws 38 and nuts 39, which connect one end of the chains 37 to the frame. Each of the acetylene torches .61 and 67 may be adjusted in its respective carrying sleeve and the torch 61 may be adjusted relative to the torch 67 by sliding the sleeve 58, which passes through the elongated opening 56, on the arm, this manner of adjustment having been previously described, in detail. I wish to lay particular stress on the fact that with the construction which I have disclosed and described the machine may be adapted for use in connection with pipes of different or varying diameters through means of the adjusting means disclosed or by the substitution of a relatively small number of parts. This application is limited to that species of my invention specifically disclosed and claimed herein. '1 am not Having fully described my invention what I claim as new and desire to secure byLetters Patent is:

1. A machine for cutting pipe comprising a member rotatably mounted relative to the pipe, an arm having one end connected to and rotatable with the member, means carried 5 by the arm adjacent the opposite end and engageable with the pipe during the rotation I of the arm relative to the pipe for positioning the end of the arm relative to the pipe, and cutting torches carried by the arm.

2. A machine for cutting pipe-comprising a member rotatably mounted relative to the pipe, an arm having one end connected to and rotatable with the member, a roller carried by the arm adjacent the opposite end and engageable with the pipe during the rotation of the arm relative to the pipe for positioning the end of the arm relative to the pipe, and cutting torches carried by the arm. 3. A machine for cutting pipe comprising 0 a member rotatably mounted relative to the pipe, an arm connected to and rotatable with the member, a carriage connected to the arm and carried around the pipe during rotation of the arm relative to the pipe, rollers carried by the carriage and engageable with the pipe, and cutting torches carried by the arm.

4. A machine for cutting pipe comprising a member rotatably mounted relative to the pipe, an arm connected to and rotatable with the member, a post carried by the arm, a roller mounted in the post and engageable with the pipe, a carriage connected to the arm and operable therewith, a roller carried by the carriage and engageable with the pipe,

and cutting torches carried by the arm.

5. A machine for cutting pipe comprising a member rotatably mounted relative to the i e an arm havin one end connected to and rotatable with the member, an arcuateshaped member carried by the arm adjacent the free end, a roller carried by the arcuateshaped member and engageable with the pipe for positioning the free end of the arm relative to the pipe, and cutting torches carried by the arm.

6. A machine for cutting pipe comprising a member rotatabl mounted relative to the pipe, an arm having one end connected to and rotatable with the member, an arcuateshaped member carried by the arm adjacent its free end, means for adjusting the arcuateshaped member, a roller carried by the arcuate-shaped member and engageable with 5 the pipe for positioning the free end of the arm relative to the pipe, and cutting torches carried by the arms.

.7. A machine for cutting pipe comprising a member rotatably mounted relative to the pipe, an arm havm one end connected to and rotatable with t v e member, an arcuatesha ed member carried by the arm adjacent its ree end, a roller removably carried by the arcuate-shaped member and engageable with the pipe for positioning the free end of the arm relative to the pipe, and cutting torches carried b the arm.

In testlmony whereof I hereuntoaflix my signature.

NOAH E. WAGNER. 

